Chemoselective hydrogenation of aromatic nitro compounds to the corresponding anilines is an environmentally benign technology for the production of key intermediates in manufacturing of pharmaceuticals, agrochemicals, dyes and fine chemicals. Non-noble metal Cu-based catalyst have been reported as a low-cost alternative but suffer from poor activity. Herein, by fabricating nickel oxide promoted Cu catalysts, a promoted activity was obtained in supported Cu-Ni bimetal catalyst system. Characterizations such as H₂-TPR and XPS indicate a strong interaction between Cu and Ni, which contributes to its high activity and selectivity in hydrogenation of p-chloronitrobenzene (p-CNB) to p-chloroaniline (p-CAN). Control experiments suggest that either monometallic copper or pure nickel oxide is less active for the reaction but the interaction of NiO_x with Cu generates much more active species, resulting in significantly improved catalytic reactivity and selectivity. The activity was found to highly dependent on the contents of Cu⁰ & Cu⁺ in Cu-Ni bimetal catalyst, as the specific reaction rates for hydrogenation of p-CNB grew linearly with the increment of Cu⁰ & Cu⁺ loadings. Kinetic studies and in-situ DRIFTS of p-CNB imply the 10Cu-5Ni/AlSBA-R catalyst possess good capacity for the activation of hydrogen and nitro group, leading to high p-CNB conversion and p-CAN production. The present work provides a good example for understanding the interaction between Cu and nickel oxides, and helps to develop highly efficient non-noble metal catalysts for selective hydrogenation of aromatic nitro compounds to corresponding anilines.

芳香族硝基化合物化学选择性氢化为相应的苯胺是一种环境友好型技术，可用于生产医药、农用化学品、染料和精细化学品制造中的关键中间体。据报道，非贵金属铜基催化剂是一种低成本的替代品，但活性较差。在此，通过制备氧化镍促进的 Cu 催化剂，在负载型 Cu-Ni 双金属催化剂体系中获得了促进的活性。H ₂ -TPR 和 XPS 等表征表明 Cu 和 Ni 之间存在强相互作用，这有助于其在对氯硝基苯( p -CNB)氢化为对氯苯胺( p-能够）。对照实验表明，单金属铜或纯氧化镍对反应的活性较低，但 NiO _x与 Cu 的相互作用会产生更多的活性物质，从而显着提高催化反应性和选择性。发现活性高度依赖于 Cu-Ni 双金属催化剂中 Cu ⁰和 Cu ^{+的含量，因为}p -CNB的氢化比反应速率随着 Cu ⁰和 Cu ⁺负载量的增加而线性增长。p的动力学研究和原位漂移-CNB 意味着 10Cu-5Ni/AlSBA-R 催化剂具有良好的氢和硝基活化能力，导致高p -CNB 转化率和p -CAN 生产。目前的工作为理解铜和镍氧化物之间的相互作用提供了一个很好的例子，并有助于开发高效的非贵金属催化剂，用于将芳香族硝基化合物选择性加氢为相应的苯胺。